The former "American Idol" judge added that he is "very happy" with what's to come.

Cowell also spoke with Neil Fox of Magic FM about the next chapter in his life, and gushed about the mother of his child.

"It was a surprise initially and some of the circumstances around this were very uncomfortable to say the least, but it happened and she's an incredible girl," he said. "Then once I got used to the idea that I was going to be a dad, then I was really happy."